[tex-k] cm-super fails

Hi
I installed a test version of cm-super fonts (uploaded recently to CTAN),
run LaTeX with a small test file:
\documentclass[12pt]{article}
\usepackage[T1]{fontenc}
\begin{document}
hello
\end{document}
and then dvips, as here:
dvips -o xxx -u cm-super test.dvi
which failed with a mysterious error message:
This is dvips(k) 5.86e Copyright 2001 Radical Eye Software (www.radicaleye.com)
' TeX output 2001.10.31:1829' -> xxx
<texc.pro><cm-super-t1.enc><texps.pro>. <sfrm1200.pfb> Error: 3250744 Subr not found
Does anyone have a hint as to what might be causing the problem?
Kaja